Whiffletree



(NoModel.)

M. B. KIRKERc WHIFPLETRBE.

No. 324,848. Patented Aug. 25, 1885.

UNITED STATES Artnr Ormea.

MILTON B. KIRKER, OF PITTSBURG, PENNSYLVANIA.

WHI'FFLETREE.

SPECIFICATION forming part of Letters Patent No. 324,848, dated August 25,1885.

Application filed March 14, 1985.

To all whom t may concer n:

Be it known that I, MILTON B. KIRKER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented cert-ain new and useful Improvements in Single and Double Trees; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specitication.

My invention relates to an improvement in single and double trees, the object being to provide a metallic single or doubletree of simple and durable construction, and of small initial cost; and to that end my invention consists of a hollow metallic bar provided with a clip at the middle for attachment, both ends being swaged in the form of a hook.

In the accompanying drawings, Figure l represents a hollow metallic double-tree provided with clips such as are now in general use. Fig. 2 is a cross-section of the same. Fig. 3 represents a hollow metallic single-tree. Fig. 4 represents a hollow metallic neck-yoke for use on the front of a wagon-tongue.v

To put my invention into practice, I provide a hollow metallic bar, A, of the required length, whose transverse section at the middle is larger than that of either end B C. At the center of this bar A, I place a clip, D, for at` tachment to a wagon or other vehicle. Each end of the bar A is provided with double clip E F, to which is fastened two other hollow metallic bars, G H, of the same construction,

but somewhat smaller. This construction of a double-tree is stronger and much lighter than any now in use.

(No model.)

In constructing what is known as a neckyoke, I use the same hollow metallic bar A, provided with a large ring, I, at the middle, which is placed over the tongue of the wagon, and two similar rings, J K, at the ends, for atachment with the breast-chains.

The form which I prefer to use, andwhich I claim as my invention, is that shown on the single-trees in Fig. l and on the double-tree in Fig. 3, in which the hooks G are formed of the same piece of material as the body of the tree by simply drawing the sides into a solid rod and tapering and bending it, as shown.

This gives great strength to the hook, as it l causes it to exert a strain upon the entire circumference of the end, and reduces the liability of breakage to a minimum, while the insertion of a plug or fastening would only draw upon the back and front of the cylinder, while the sides would in no Wise contribute to the strength of the hook. Where it is desired and necessary to secure a trace or tug to the whiflietree the body of the cylinder cannot be utilized, as said part will not encompass it.

Having thus described my invention, what I claim as new, and desire to secure by Letters 

